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    Lebowski Controller Brain

    Hi All, Been away for a while. I'm wondering if the lebowski controller is still available to be purchased. All I require is the control board/uC as I want to make my own power stage. Thanks
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    Help me Identify how many pole pairs this motor has

    Hi, So I am trying to find out how many pole pairs this motor has
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    2 different current sensors for low rpm Sensor less control

    So correct me if I'm wrong but in sensorless control using space vector modulation you measure the current to know the rotor's position and hence you can know how to drive it As I underetand At low rpm the problem is the current is small and hence you cannot measure it properly. To solve this...
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    DIY BLDC Controller Wave forms + Snubber

    Hi all, I am doing my final year thesis in electronics and control. I have built a prototype board for my BLDC motor controller. The board has a lot of test points and jumpers so I can manipulate components in and out of circuit to see what effect they have on the wave forms. What I want to...
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    Snubber Design for Controller Choice of Capacitor and Power

    Hi All I am desgigning my own 3 phase motor controller. I want to implement a snubber circuit to Protect the FETs. I will use and RC snubber circuit since it is simple and effective, even though it has quite low efficiency (approx 40%-60%). I have found this application note which is great and...
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    DIY Custom Conttroler Version 2

    Hi Guys, I have a thread where I created the first really expensive bulky version of a brushless motor controller but it worked. 0XuylPevH7s The thread can be found here : https://endless-sphere.com/forums/viewtopic.php?f=3&t=70870&start=75 Now I want to move on to version 2. I will be doing...
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    My First Build : MILDA MK 1 /out of Commision Please Help!

    Hey Lads, Presenting to you my first build. Possibly the ugliest eBike on ES I called her Milda cuase it's an ugly bike worthy of an ugly name. 1kW BHT motor, 1kW-3kW controller 18 FET, Supposedly 48V 15Ah battery. Sill have to do some tidying up with wires and battery key holder thing...
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    Off grid standalone electricity supply project

    Hi all, I have started work on a project to convert a room my dad has in a field to a fully convert it into a standalone electricity supply. I have gathered a lot of 18650 cells and upon testing, roughly 130 of them have tested above 2Ah. I will solder these cells in a 14s8p pack (roughly 48V...
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    Why are the DaVinci drives used?

    Hi all, I have been trying to figure out why the DaVinci drives are so popular. I have been looking on this form and on their website and all I've found is that they are used for some reduction. This however, is very confusing to me. The gearing seems to go from small to large, small to large...
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    Custom Controller Build + Needed Feedback! :)

    Hey Lads, Before I start a bit of a background. I am an Electronics and Plant Process Control Engineering Student finalizing my degree. For my Higher national Diploma I made my own Brushless motor controller and it worked. It can be seen here...
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    Modular Gate Driver Board and Power Stage

    Hi guys, I am want to collect some feedback on what you guys might want. Firstly as for my higher national diploma project I have made my own 1kW+ BLDC motor controller. The thread can be viewed here: https://endless-sphere.com/forums/viewtopic.php?f=3&t=70870 The circuitry I designed proved...
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    Custom BLDC Controller Closed Loop

    Hello Guys, I am going to make an e bike for my collage project. I am studying electrical/electronics engineering. My main goal is to produce an e-bike at around 1-3 kW power and also have an electronically controlled CVT gearbox to give a higher speed/ torque band making the bike more...
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    1kW brushless RC Motor vs 1kW (big) brushless motor E-Bike

    Hey guys, What are the differences between RC BLDC motors and regular (big) BLDC motors? Lets take the following as an example: I would assume there are several differences between the motors below. If so what are they for example in torque? 1...
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